HTTP/1.1 200 OK Date: Sat, 11 Feb 2012 14:07:33 GMT Server: Apache Content-Length: 0 Connection: close Content-Type: text/html; charset=UTF-8

Programming Fonts for the Web

The idea is to use CSS to have the browser display programming and code similar to the high-quality look of a developers machine, like this older screenshot of my VIM.

Posted in CSS | Published on October 29, 2011 |1 Comment »

HTTP Headers

… Read the rest

HTTP Header Name	Header Description	Example HTTP Header
Accept	Content-Types that are acceptable	`Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,/;q=0.5`
Accept-Charset	Character sets that are acceptable	`Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7`
Accept-Encoding	Acceptable encodings	`Accept-Encoding: gzip,deflate`
Accept-Language	Acceptable languages for response	`Accept-Language: en-us,en`
Accept-Ranges	What partial content range types this server supports	`Accept-Ranges: bytes`
Age	The age the object has been in a proxy cache in

Posted in | Published on October 26, 2011 |5 Comments »

HOWTO: Uninstall CPANEL over SSH

The following is just a quick reference of some of the commands I used to successfully uninstall cpanel. This is for advanced users of the shell. If you aren't that advanced and you run a single one of these commands without fully understanding it, you will probably kill your server, probably lose everything on it permanently, probably not have a website or email for weeks.. So backup all your data FIRST. Also, if you aren't 100% sure you won't run into problems, you should contact your hosts technical support - but be prepared for some MAJOR negativity.. cpanel makes things very easy for hosts, you are just a drop in their bucket.

Wow!

You sure gotta bigger set that *I* do. . . . - for real! I've been known to do some abysmally stupid things in my day - and actually had them work the way I wanted them to! - but this takes the titanium, gadolinium, rhodium alloy cake!

Me, I'd try something like that and find out later that the fire-trucks showed up right after I hit the "Enter" key. It's a REALLY interesting post, and a real eye-opener - especially for someone who is relatively new to the whole web-hosting-service paradigm. I know, no guts, no glory - but THIS is WAY over the top! I'm reading this and thinking "Why not just put a couple of sticks of dynamite under the thing?"

Seriously now, this was an excellent read - and for someone who is just now looking into the whole web-hosting paradigm, it's a real eye-opener. Though I think I'll just tiptoe past this REAL QUIETLY for now. . . . (laughing!)

Jim

Posted in Hacking | Published on July 4, 2011 |3 Comments »

Enhanced printenv Script for Server Debugging

A souped-up version of the Apache printenv script for hard-core server environment debuggery.

#!/bin/sh
echo -e "Content-type: text/plain\n\n"
...
  __T "CURRENT PROCESS CMDLINE"
  {
   for p in `echo /proc/[0-9]*/cmdline`;
   do
    pid=${p:6:$((${#p}-13))}
    [[ $pid == $PPID || $pid == $$ ]] && continue;
    __M "[ /proc/$pid ]";
    sed 's/\x00/ /g;G' $p 2>/dev/null
   done
  }
 fi

Posted in Hosting | Published on April 14, 2011 |1 Comment »

Htaccess Rewrites – Rewrite Tricks and Tips

htaccess rewrite / Mod_Rewrite Tips and Tricks is as glamorous as it sounds! htaccess rewrite mod_rewrite is just possibly one of the most useful Apache modules and features. The ability to rewrite requests internally as well as externally is extremely powerful.

Posted in Htaccess | Published on April 10, 2011 |128 Comments »

HTTP Status Codes and Htaccess ErrorDocuments

There are a total of 57 HTTP Status Codes recognized by the Apache Web Server. Wouldn't you like to see what all those headers and their output, ErrorDocuments look like?

Posted in Htaccess | Published on January 4, 2011 |23 Comments »

Adding YouTube Videos To Website, 4 Methods

This is the advanced example. It uses the jw flv player to create a flash proxy. This basically lets me control the youtube video as if it were a local .f4v file. With this method I can specify any options, autostart, volume, playlists, etc.. But it's rather complex so lets start with 3 other methods to embed YouTube video.

Posted in Javascript | Published on October 30, 2010 |3 Comments »

Ultimate Htaccess Part II

Here is even more information from the Ultimate Htaccess Part I. For now this is very rough and you will want to come back later to read it.

Posted in Htaccess | Published on October 16, 2010 |5 Comments »

Dealing with Mobile Visitors using Bad Browsers

Definately worth the read… Read the rest, but it is hard to see any benefit to doing this. Mobile agents are still in their infancy, but within 2 years most mobiles will be as fast as the laptops from a couple years back... I mean my droid is running linux! The world is moving steadily towards a society where mobile devices will

Posted in Htaccess | Published on September 9, 2010 |1 Comment »

Advanced Windows Batch File Scripting

If for some reason you need to use windows .bat batch file scripting to do some task, or you just want to learn the most universal batch programming language on Windows machines, you lucked out and found the AskApache example. My expertise is the shell, in this article the shell is Windows cmd.exe. It has some pretty advanced windows shell usage, including pipes and redirection, but it's the modular linux-like coding approach that earns this script it's "advanced" title.

:SETPROMPT
set PROMPT=$_[%USERNAME%@%USERDOMAIN%]$S[$P]$_$M$G && EXIT /B

My favorite tool (and I've tried sooo many) for editing most Windows files and especially .bat files is the free and open-source Notepad++. Set that up and you will have a color-syntax-highlighted editor for Batch Scripting that works very very well.

Posted in Windows | Published on September 3, 2010 |5 Comments »

Mod_Rewrite Variables Cheatsheet

We've figured out what mod_rewrite variables look like, a cheatsheet of the actual value.

Posted in Htaccess | Published on August 3, 2010 |6 Comments »

PHP Session File Hacks

What they say about kung-fu is true..

It can be attained by anyone through hard work over time. You can become as good as the amount of work you put in. Here's a short look at a basic technique that I use. Simply reverse engineering the source code and taking notes along the way...

static void php_session_send_cookie(TSRMLS_D)
  if (SG(headers_sent)) {
          if (output_start_filename) {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent by (output started at %s:%d)",
                          output_start_filename, output_start_lineno);
          } else {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent");
          }
          return;
  }

  /* URL encode session_name and id because they might be user supplied */
  e_session_name = php_url_encode(PS(session_name), strlen(PS(session_name)), NULL);

Posted in PHP | Published on June 24, 2010 |2 Comments »

Debugging Tools for Windows

I am almost ready to publish the final tutorial on using ssh tunnels from a truecrypt partition on a Windows machine. Of course I choose to go way overboard in my research and the tutorial is full of some pretty awesome windows tricks.. I will come back to this post soon and post all the other advanced tools I use for debugging windows, for now though you MUST know how to debug the kernel and use these basic debugging tools.

Posted in Windows | Published on |No Comments »

Crazy POWERFUL Bash Prompt

This amazing bash linux prompt does more than meets the eye. If you want to know how to become really good with technology, linux is the secret sauce behind the AskApache articles. Open Source is elixir of the web. Thanks to everyone who helped me for the past 20 years. I use linux/bsd because homey don't play, so this is geared to be as productive a prompt as I can make it.

Don't have much time.. or just don't care? Not a problem, here are the 3 lines to copy and paste - you can just paste them right in your shell to test it, or add to a startup script.

export AA_P="export PVE=\"\\033[m\\033[38;5;2m\"\$(( \`sed -n \"s/MemFree:[\\t ]\\+\\([0-9]\\+\\) kB/\\1/p\" /proc/meminfo\` / 1024 ))\"\\033[38;5;22m/\"\$((\`sed -n \"s/MemTotal:[\\t ]\\+\\([0-9]\\+\\) kB/\\1/p\" /proc/meminfo\`/ 1024 ))MB\"\\t\\033[m\\033[38;5;55m\$(< /proc/loadavg)\\033[m\";echo -en \"\""
export PROMPT_COMMAND="history -a;((\$SECONDS % 10==0 ))&&eval \"\$AA_P\";echo -en \"\$PVE\";"
export PS1="\\[\\e[m\\n\\e[1;30m\\][\$\$:\$PPID \\j:\\!\\[\\e[1;30m\\]]\\[\\e[0;36m\\] \\T \\d \\[\\e[1;30m\\][\\[\\e[1;34m\\]\\u@\\H\\[\\e[1;30m\\]:\\[\\e[0;37m\\]\${SSH_TTY} \\[\\e[0;32m\\]+\${SHLVL}\\[\\e[1;30m\\]] \\[\\e[1;37m\\]\\w\\[\\e[0;37m\\] \\n(\$SHLVL:\\!)\\\$ " && eval $AA_P

Posted in Linux | Published on May 25, 2010 |10 Comments »

Questions I Ask Web Hosting Companies, Before Buying

The following is a transcript of a chat I had with a company called tektonic, and at that time I was looking for a cheap linux host to use for some redundancy/failover operations. I generally contact a new hosting company like this every few months.. I like to have options available in case of some kind of failure or network attack, so it's always a good idea to have a few ace linux servers in your back pocket.

If you've read any other articles on AskApache, you can see a certain obsession towards optimization, speed, and security -- so that is the purpose of the following questions.

Posted in Hosting | Published on April 25, 2010 |9 Comments »

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